Lab 2 Intro to Vectors B. Graphical Addition of Vectors
1. Use the graphical head to tail method of vector addition to add the two force vectors Fi and F. Record the magnitude and direction of the graphical resultant force, Fr, in the fifth row of Table 1. (17 pts)
Scale: 7.0cm = 1.5N
Length of Fr: cm N
Magnitude of FR:
Direction of FR:

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54 degrees incident angle = reflected angle

angle is from normal turned to line of ray

energy stored in the capacitor= 9.72 x 10⁻⁴ j

explanation:

the energy stored in the capacitor is given by

e= 1/2 c v²

e= energy stored

c= capacitance= 1.5 µc= 1.5 x 10⁻⁶f

v= potential difference=36 v

so energy stored= e= 1/2 (1.5 x 10⁻⁶) (36)²

energy stored= 9.72 x 10⁻⁴j